Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia
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Autologous bone grafts from cervical vertebral bodies (Williams-Isu method) are used for anterior fusion of the cervical spine. When adequate amounts of bone cannot be harvested from the vertebral body, hydroxyapatite (a ceramic) is placed between the bone grafts (the sandwich method). ⋯ In both groups the position of the anterior edge of the graft and the loss in the angle of the fused segment were significantly correlated (p<0.05). We found that the sandwich method not only reinforced the graft, but also yielded better results with respect to the angle and height of the fused segment.
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Clinical Trial
Intra-operative, real-time, three-dimensional ultrasound assisted positioning of catheters in the microdialysis of glial tumours.
Microdialysis allows sampling of the extra cellular fluid of normal and pathological tissues. Accurate positioning of catheters in viable, representative tumour tissue is crucial for the accuracy and effectiveness of the technique. ⋯ The accuracy of the spatial targeting was validated by pathological examination and the quality of the microdialysate was checked with ultra performance liquid chromatography-mass spectrometry. Our results indicate that intra-operative 3D-US can be used to correctly position catheters for microdialysis and allows adjustment to the catheters, when necessary, prior to the dialysis of viable target tumour tissue.
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The endovascular approach has become the standard treatment for ruptured aneurysms during the vasospasm risk period following subarachnoid hemorrhage; however, it may be disadvantageous under certain conditions. We report a patient with a ruptured middle cerebral artery aneurysm with severe vasospasm and thrombosis within the aneurysm immediately after angiography. Emergent operative open thrombectomy of the intra-aneurysmal thrombus restored blood flow to the ischemic penumbra territory demonstrated by single photon emission CT scan and diffusion-weighted MRI.
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Case Reports
Catastrophic delayed rupture of a traumatic aneurysm of the distal superior cerebellar artery in a child.
Traumatic aneurysms of the superior cerebellar artery are rare, especially in children. We report a 3-year-old boy who had a catastrophic delayed rupture of a traumatic aneurysm arising from the superior vermian branch of the left superior cerebellar artery. ⋯ The aneurysm and the superior vermian artery were successfully embolised endovascularly, but the child never recovered and died 3 days later. The pathogenesis, natural history and treatment options of these aneurysms are discussed.